Any interest in GC input buffer and power supply regulator pcb's? - diyAudio
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Old 5th June 2004, 12:05 AM   #1
Sheldon is offline Sheldon  United States
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Default Any interest in GC input buffer and power supply regulator pcb's?

I haven't been on this forum long but I can tell already, that if a good project exists, the compulsion to make it better is right behind. With that in mind, how about the hi-end GC with input buffer and ps regulation? I know I'm gonna do one like that. I don't have them, but Pedja has some pretty spiffy designs that he is willing to let the DIY folks use for a group order type project like Brian's.

Brian said he might (and I'll stress might) be able to help with the pcb design, and Pedja might also be willing. But the project needs someone to organize a group specification/buy ala Brian GT. Any interest/takers?

Sheldon
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Old 5th June 2004, 01:36 AM   #2
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Well, I'm too much of a noobie to take on a group buy... But I am interested in this project! I had been thinking after reading the other regulated power supply thread that it would be pretty dang nifty if someone put out a matching red PCB for the power supply regulators!
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Old 5th June 2004, 03:29 AM   #3
agent.5 is offline agent.5  United States
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I am interested. Are you planning on using a tube as buffer?
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Old 5th June 2004, 10:56 AM   #4
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Default Yes I'm Interested

Just found the 2SK170BLs in Canada. I'd be up for a pair of boards.
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Old 5th June 2004, 12:09 PM   #5
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Count me in.
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Old 5th June 2004, 04:27 PM   #6
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Default The list grows

Hi Sheldon,
I'm subscribed and watching with interest.
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Old 5th June 2004, 06:21 PM   #7
Sheldon is offline Sheldon  United States
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Quote:
Originally posted by agent.5
I am interested. Are you planning on using a tube as buffer?

I'm thinking of one myself. The JFET circuit Pedja has described looks like it would be pretty easy to convert to low voltage tube use ala Rasmussen's JTLi, though I don't know enough to supply the details. My guess is that most here would want the JFET version, but the same board might be useful for either.

Sheldon
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Old 6th June 2004, 03:55 AM   #8
jhead is offline jhead  United States
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Default Schmatics

Anyone up to drawing up a circuit schmatic to gain ways to implement
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Old 6th June 2004, 08:00 AM   #9
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i think it will be wise not to include a buffer on the amp pcb - many people will use several amps for biamp or triamping there system, and therefor only need one buffer........imho...
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Old 6th June 2004, 08:10 AM   #10
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i send sheldon a ready pcb file and he is "authorized" to use it as he likes.
it is made for lm3886 and the regs are lt1083 with trimpots for V adj. there is also a dc - null trimpot. the two full bridges are made for IR hfa08tb60 and likes. and there is space for one cerafine 10000uF/63 / channel.
as you see, its a complete amplifier pcb - just ad a transformer and go.......
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